well... it's usually the other way around. Some people remove their couches (gaucho) and put in a Dinette. How abought I trade you my gaucho for your Dinette?
It all depends on how handy you are, or how full your wallet is.
Is this something you are planning on doing yourself, or hiring done? If you've got the equipment and the time, there is nothing more satisfying than creating something and enjoying the fruits of your labors.